SRP8034

IL-2 (human): FC (human)

recombinant, expressed in HEK 293 cells, >95% (SDS-PAGE)

• 别名: Aldesleukin, INN, Interleukin-2, T-cell growth factor
• CAS号: 110942-02-4
• 分類程式碼代碼: 12352200
• NACRES: NA.77

属性

• 生物源: human
• 重組細胞: expressed in HEK 293 cells
• 化驗: >95% (SDS-PAGE)
• 形狀: lyophilized
• 分子量: ~42 kDa
• 包裝: pkg of 10 μg
• 儲存條件: avoid repeated freeze/thaw cycles
• 雜質: <0.01 EU/μg endotoxin, tested
• 顏色: white
• UniProt登錄號: P60568
• 運輸包裝: wet ice
• 儲存溫度: −20°C
• 基因資訊: human ... IL2(3558)

说明

一般說明

Interleukin-2 (IL-2) is a 133 amino acid glycoprotein with one intramolecular disulfide bond and variable glycosylation. It is secreted by activated T cells and induces proliferation and maturation of activated T cells, natural killer cells and lymphokine activated killer cells. IL-2 also stimulates proliferation of antibody-producing B cells, activates neutrophils and induces mononuclear cells to secrete IFN-γ and TNF-α and -β. Moreover, studies have shown that IL-2 is required for activation-induced apoptosis, an important homeostatic mechanism in the immune system, which is involved in the maintenance of peripheral tolerance to self-antigens.IL-2 promotes T cell proliferation and particularly naive T cells. IL-2 signaling on activated T cells is effected through a quaternary high-affinity receptor complex consisting of IL-2, IL-2Rα (CD25), IL-2Rβ and IL-2Rγ. Naive T cells are relatively insensitive to IL-2 as they only express small amounts of IL-2Rβ and IL-2Rγ. They only acquire sensitivity after CD25 expression, which captures the cytokine and presents it to the IL-2Rβ and IL-2Rγ receptors. IL-2 Superkine (Fc) is an artificial variant of IL-2 containing mutations at positions L80F / R81D / L85V / I 86V / I92F. These mutations are located in the molecule′s core that acts to stabilize the structure and to give it a receptor-binding conformation mimicking native IL-2 bound to CD25. These mutations effectively eliminate the functional requirement of IL-2 for CD25 expression and elicit proliferation of T cells. Compared to IL-2, the IL-2 superkine induces superior expansion of cytotoxic T cells, leading to improved antitumour responses in vivo, and elicits proportionally less toxicity by lowering the expansion of Tregulatory cells and reducing pulmonary oedema.

外觀

Lyophilized from PBS.

重構

Reconstitute with 100 μL deionized water.

其他說明

The extracellular domain of human IL-2 (aa 21-153) (mutant H9 containing the mutations L80F / R81D / L85V / I 86V / I92F) is fused at the C-terminus to the Fc portion of human IgG2.

安全信息

• 儲存類別代碼: 10 - Combustible liquids
• 水污染物質分類（WGK）: WGK 2
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable